CN204098116U - Center-rotary joint mounting structure and engineering machinery - Google Patents
Center-rotary joint mounting structure and engineering machinery Download PDFInfo
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- CN204098116U CN204098116U CN201420427344.6U CN201420427344U CN204098116U CN 204098116 U CN204098116 U CN 204098116U CN 201420427344 U CN201420427344 U CN 201420427344U CN 204098116 U CN204098116 U CN 204098116U
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- center
- rotary joint
- installing plate
- mounting structure
- revolving support
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Abstract
The utility model proposes a kind of center-rotary joint mounting structure and engineering machinery, wherein, this center-rotary joint mounting structure comprises: for be bolted with center-rotary joint center-rotary joint installing plate, butter pond base plate, for being connected revolving support installing plate and the pivoting support seat ring of revolving support; The bottom welding of described center-rotary joint installing plate and described butter pond base plate, described butter pond base plate is welded in the groove on the top of described revolving support installing plate; The bottom of described revolving support installing plate is welded with pivoting support seat ring.The utility model is connected with center-rotary joint from passing beneath center-rotary joint installing plate by bolt, can realize from bottom dismounting of getting off.
Description
Technical field
The utility model relates to a kind of center-rotary joint mounting structure.
Background technology
The engineering machinery center-rotary joints such as hydraulic crawler excavator all comprise revolving body and mandrel, and revolving body and mandrel are separately fixed on relative pivotal two structures, see Fig. 1, show the broken section structure of the center-rotary joint of prior art.As can be seen from Fig. 1, it is matched in clearance between mandrel 2 ' and revolving body 1 ', mandrel 2 ' offers oil-in 20 ', revolving body 1 ' is provided with multiple oil-out 10 ', revolving body 1 ' has the groove installing sealing ring 8 ', by sealing ring 8 ', each oil circuit is separated, revolving body 1 ' is also provided with dust ring 7 '.
Existing center-rotary joint is generally directly installed on vehicle frame, vehicle frame has screw, center-rotary joint is bolted on vehicle frame, particularly, bolt screws in vehicle frame from top to bottom, with fixing center-rotary joint, cause from bottom dismounting center-rotary joint of getting off more difficult, more difficult to the maintenance in center-rotary joint later stage.
Utility model content
The utility model aims to provide a kind of center-rotary joint mounting structure and engineering machinery, so that realize can from bottom dismounting center-rotary joint of getting off.
On the one hand, the utility model provides a kind of center-rotary joint mounting structure, comprising: for be bolted with center-rotary joint center-rotary joint installing plate, butter pond base plate, for being connected revolving support installing plate and the pivoting support seat ring of revolving support; The bottom welding of described center-rotary joint installing plate and described butter pond base plate, described butter pond base plate is welded in the groove on the top of described revolving support installing plate; The bottom of described revolving support installing plate is welded with pivoting support seat ring.
Further, the rectangle removal hole for allowing described center-rotary joint to pass is provided with in the middle part of described center-rotary joint installing plate.
Further, the hole of described rectangle removal hole along on circular arc is set, described center-rotary joint is provided with seam, and described circular arc coordinates with described seam and realizes locating.
Further, described revolving support installing plate is provided with at least two pin-and-holes for auxiliary positioning.
Further, the screwed hole machine add-on type on described pin-and-hole and described center-rotary joint installing plate.
Further, described butter pond base plate is provided with plate of draining the oil.
On the other hand, the utility model provides a kind of engineering machinery, comprising: center-rotary joint, is also provided with described center-rotary joint mounting structure.
Further, described center-rotary joint is provided with two symmetrical connection otic placodes, each otic placode is provided with through hole, bolt is connected with described center-rotary joint installing plate through described through hole.
Further, each otic placode is provided with two described through holes.
Further, described engineering machinery is excavator.
The utility model center-rotary joint mounting structure is connected with center-rotary joint from passing beneath center-rotary joint installing plate by bolt, can realize from bottom dismounting of getting off.
This project machinery comprises above-mentioned center-rotary joint mounting structure, also has corresponding technique effect.
Accompanying drawing explanation
In order to be illustrated more clearly in the utility model embodiment or technical scheme of the prior art, be briefly described to the accompanying drawing used required in embodiment or description of the prior art below, apparently, accompanying drawing in the following describes is only embodiments more of the present utility model, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
Fig. 1 is the structural representation of existing center-rotary joint;
The decomposing schematic representation of the center-rotary joint mounting structure that Fig. 2 provides for the utility model embodiment; For ease of understanding, in this figure, also show center-rotary joint;
Fig. 3 is the scheme of installation of structure shown in Fig. 2;
The structural representation of the center-rotary joint that Fig. 4 provides for the utility model embodiment;
The structural representation of the center-rotary joint installing plate that Fig. 5 provides for the utility model embodiment.
Detailed description of the invention
It should be noted that, when not conflicting, the embodiment in the application and the feature in embodiment can combine mutually.Below with reference to the accompanying drawings and describe the utility model in detail in conjunction with the embodiments.See Fig. 2, Fig. 3 and Fig. 5, it illustrates the preferred embodiment of the center-rotary joint mounting structure that the utility model provides.This center-rotary joint mounting structure comprises: for be bolted with center-rotary joint 1 center-rotary joint installing plate 2, butter pond base plate 3, for being connected revolving support installing plate 4 and the pivoting support seat ring 5 of revolving support; The bottom welding of described center-rotary joint installing plate 2 and described butter pond base plate 3, described butter pond base plate 3 is welded in the groove on the top of described revolving support installing plate 4; The bottom of described revolving support installing plate 4 is welded with pivoting support seat ring 5.This butter pond base plate 3 is also provided with plate 6 of draining the oil, is mainly used in later period maintenance, by it, the butter in butter pond is released.
Particularly, as shown in Figure 4, described center-rotary joint 1 is provided with two symmetrical connection otic placodes 12, each otic placode 12 is provided with through hole, bolt is connected with described center-rotary joint installing plate 2 through described through hole.In Fig. 4, each otic placode 12 is provided with two described through holes, the quantity of through hole can be arranged according to actual needs.
Because bolt is connected from passing beneath center-rotary joint installing plate 2 with center-rotary joint 1 in such scheme, so can realize directly from bottom of getting off by Bolt dismantling.
Preferably, the rectangle removal hole 21 for allowing described center-rotary joint 1 to pass is provided with in the middle part of described center-rotary joint installing plate 2.When a failure occurs it, pipeline can be disassembled by A place in Fig. 3 by maintenance personal, again center-rotary joint 1 is rotated 90 °, center-rotary joint 1 can be overall through this rectangle removal hole 21, realize center-rotary joint 1 to take off from bottom of getting off, drastically increase the maintenance convenience of center-rotary joint 1.
Preferably, by center-rotary joint installing plate 2, butter pond base plate 3, revolving support installing plate 4 is connected as widgets with revolving support seat ring 5 by welding manner, screwed hole (i.e. pin-and-hole 41) machine add-on type on screwed hole on center-rotary joint installing plate 2 and revolving support installing plate 4, considerably reduces the error of upper and lower plates.
Owing to manufacturing, the factor such as vibrations, revolution impact of rigging error and the excavator course of work, easily cause mandrel and the revolving body endoporus decentraction of center-rotary joint, mandrel after bias can aggravate the wearing and tearing of sealing ring and dust ring, easily cause the faults such as equipment oil leakage, reduce the application life of center-rotary joint.The present embodiment makes total tolerance of revolving support mounting structure be less than the deflection δ of permission by tolerance fit, can reduce eccentric degree as far as possible.
Consider that the shell of center-rotary joint moves freely, the center in turning course is the center of revolving support, and therefore, the concentricity tolerance of mandrel and housing is mainly made up of following components:
(1) the tolerance σ 1 of revolving support inner ring and outer ring;
(2) the worst error σ 2 in the installation of revolving support and revolving support installing plate 4;
(3) the tolerance σ 3 that adds of center-rotary joint installing plate 2 and revolving support installing plate 4 machine;
(4) the alignment error σ 4 of center-rotary joint 1 and center-rotary joint installing plate 2;
I.e. demand fulfillment: σ 1+ σ 2+ σ 3+ σ 4≤δ
Consider that deflection δ is generally at grade simultaneously, and σ 1 is the manufacturing tolerance of pivoting support, general in 0.01mm level, adopt widgets integrated machine to add rear σ 3 to determine primarily of the precision of lathe, also in 0.01mm level, therefore can ignore, therefore tolerance is formed primarily of alignment error σ 2 and σ 4; Preferably, in order to control σ 2, described revolving support installing plate 4 is provided with at least two pin-and-holes 41 for auxiliary positioning, pin (not shown) adopts small―gap suture to coordinate with pin-and-hole 41, and error can control in 0.01mm level; Preferably, in order to control σ 4, the hole of described rectangle removal hole 21 along on circular arc 22 is set, described center-rotary joint 1 is provided with seam 11, described circular arc 22 coordinates with described seam 11 and realizes locating, install by the cooperation reduction bolt of circular arc 22 and seam 11 error caused, error can control, in 0.1mm level, to meet design requirement.
The present embodiment by devising rectangle removal hole, and on center-rotary joint 1 tapping, realize center-rotary joint 1 and carry out dismounting from platform floor, improve the maintenance convenience of center-rotary joint 1; In addition, center-rotary joint installing plate 2, butter pond base plate 3, revolving support installing plate 4 and revolving support seat ring 5 are connected as widgets by welding manner, and after welding, integrated machine processing, reduces design error; Adopt the tolerance fit method design design error of each several part part, reduce the error of center-rotary joint 1; The method of pin-and-hole auxiliary positioning and seam location is adopted to reduce alignment error.
The utility model also provides a kind of engineering machinery, comprises center-rotary joint 1, is also provided with described center-rotary joint mounting structure.Described engineering machinery includes but not limited to excavator.This project machinery comprises above-mentioned center-rotary joint mounting structure, also has corresponding technique effect.
The foregoing is only preferred embodiment of the present utility model; not in order to limit the utility model; all within spirit of the present utility model and principle, any amendment done, equivalent replacement, improvement etc., all should be included within protection domain of the present utility model.
Claims (10)
1. a center-rotary joint mounting structure, it is characterized in that, comprising: for be bolted with center-rotary joint (1) center-rotary joint installing plate (2), butter pond base plate (3), for being connected revolving support installing plate (4) and the pivoting support seat ring (5) of revolving support; The bottom welding of described center-rotary joint installing plate (2) and described butter pond base plate (3), described butter pond base plate (3) is welded in the groove on the top of described revolving support installing plate (4); The bottom of described revolving support installing plate (4) is welded with pivoting support seat ring (5).
2. center-rotary joint mounting structure according to claim 1, it is characterized in that, described center-rotary joint installing plate (2) middle part is provided with the rectangle removal hole (21) for allowing described center-rotary joint (1) to pass.
3. center-rotary joint mounting structure according to claim 2, it is characterized in that, the hole of described rectangle removal hole (21) along on circular arc (22) is set, described center-rotary joint (1) is provided with seam (11), described circular arc (22) coordinates with described seam (11) and realizes locating.
4. center-rotary joint mounting structure according to claim 3, is characterized in that, described revolving support installing plate (4) is provided with at least two pin-and-holes for auxiliary positioning (41).
5. center-rotary joint mounting structure according to claim 4, is characterized in that, described pin-and-hole (41) and the screwed hole machine add-on type on described center-rotary joint installing plate (2).
6. the center-rotary joint mounting structure according to any one of claim 1-5, is characterized in that, described butter pond base plate (3) is provided with plate of draining the oil (6).
7. an engineering machinery, comprises center-rotary joint (1), it is characterized in that, is also provided with the center-rotary joint mounting structure according to any one of claim 1-6.
8. engineering machinery according to claim 7, it is characterized in that, described center-rotary joint (1) is provided with two symmetrical connection otic placodes (12), (12) are provided with through hole to each otic placode, and bolt is connected with described center-rotary joint installing plate (2) through described through hole.
9. engineering machinery according to claim 8, is characterized in that, each otic placode (12) is provided with two described through holes.
10. the engineering machinery according to any one of claim 7-9, is characterized in that, described engineering machinery is excavator.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420427344.6U CN204098116U (en) | 2014-07-31 | 2014-07-31 | Center-rotary joint mounting structure and engineering machinery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420427344.6U CN204098116U (en) | 2014-07-31 | 2014-07-31 | Center-rotary joint mounting structure and engineering machinery |
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| Publication Number | Publication Date |
|---|---|
| CN204098116U true CN204098116U (en) | 2015-01-14 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420427344.6U Expired - Fee Related CN204098116U (en) | 2014-07-31 | 2014-07-31 | Center-rotary joint mounting structure and engineering machinery |
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| CN (1) | CN204098116U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105155609A (en) * | 2015-07-15 | 2015-12-16 | 青岛雷沃挖掘机有限公司 | Central rotating joint assembly structure for excavator and installing and disassembling method |
-
2014
- 2014-07-31 CN CN201420427344.6U patent/CN204098116U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105155609A (en) * | 2015-07-15 | 2015-12-16 | 青岛雷沃挖掘机有限公司 | Central rotating joint assembly structure for excavator and installing and disassembling method |
| CN105155609B (en) * | 2015-07-15 | 2017-12-26 | 青岛雷沃工程机械有限公司 | A kind of excavator center-rotary joint package assembly and installing/dismounting method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150114 Termination date: 20170731 |